{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "Tissue microarrays were constructed from matched normal and tumor tissue derived from patients ( n = 253 ) enrolled in a phase III trial of adjuvant 5 - fluorouracil - based chemotherapy versus postoperative observation alone ."}
{"Anatomy": ["Tissue", "tumor tissue"]}